How heavy is the first cell phone compared to today's cell phones? A. ten times as heavy
Giải thích
Thông tin: It weighed a whopping 2.5 pounds (as compared to today's cell phones that weigh as little as 3 or 4 ounces).
Chọn A
Thông tin: It weighed a whopping 2.5 pounds (as compared to today's cell phones that weigh as little as 3 or 4 ounces).
Chọn A